Clinching roller



FIG. 1 is a plan view of a clinching roller, showing my new design;

FIG. 2 is a side view of the clinching roller, showing a peripheral groove with a recess;

FIG. 3 is a perspective view of the clinching roller, showing said recess as seen obliquely from one side; and,

FIG. 4 is a perspective view of the clinching roller, as seen obliquely from the other side. 

The ornamental design for a clinching roller, as shown and described. 